Hammerhead



FIG. 1 is a perspective view of a hammerhead showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an end elevational view thereof from the striking face end;

FIG. 4 is an end elevational view thereof from the claw end;

FIG. 5 is a side elevational view thereof, the opposite side being a mirror image; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of the handle in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a hammerhead, as shown and described. 